<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <script src="d3.js" charset="utf-8"></script>
    <script>
    window.onload=function (){
      d3.select('body').append('div')
      .style('width', '300px')
      .style('height', '200px')
      .style('background', '#CCC');
    };
    </script>
  </head>
  <body>

  </body>
</html>
